... , stainless steel sheets, aluminum,aluminum-plastic, copper, nickel, titanium, PVC and othermaterials.Opening: Round, oval, square, rectangular, rhombus,hexagon, scale shape combination of ... treatment.Application: Mine, machinery, food, stationery and sportsgoods, kitchen and toilet supplies, muffler, decoration,construction, electronics, transport, etc. Hebei Shuolong wire ...